Spam. Lots being received, all from the US

Receiving shoals of spam from US. Looking at full headers, two that reappear often are yeed.boxstoryware.com and shortanyhub.com I would like to set my mail filter to block ALL US messages. Can that be done please reps? Theroretically it means blocking an origin addeess containg a null after the com but somehow I imagine that is not possible?

In addition, you can use other features under Mail Filtering Settings.

Address Filtering - allows you to create rules that will either block or allow messages to be delivered, no matter what content is within the message.

Advanced Filters - allows you to create rules that can not be created with the Address Filters. These give a finer control on the way a message can be matched, and can be set to expire on a certain day if desired.

Thanks, but I had done all those things. The problem was that all the *appparent* senders and subjects were different and only the content differed, always starting with my email name mis-spelt and the same font in red. However, I have had a look at the full headers and found a common 'from' line deep in the murk and applied that to the 'from' filter. Seems to be OK.

In relation to shoals of apprently genuine Aus. spam, I have forwarded each to ACMA per their procedure.

All this is fairly recent and I suspect that someone I have bought from on-line has sold my emial address. A pity I can't zero in on that breach of decency!

ESCALATION IS NOT NOW NECESSARY. As explained I have dealt with ithe US stuff, and ACMA wull deal with th Aus stuff. I am very fmailiar with all the filters and settings, and I do not want to set the filter to High because I may miss genuine emails..